APE - Anomaly detection via Probabilistic pairwise interaction and Entity embedding

##Introduction

This is a keras re-implementation of APE model described in the paper "Entity Embedding-based Anomaly Detection for Heterogeneous Categorical Events".

To run it, first install keras + tensorflow/theano. Then, cd into sampler folder, and run ./make.sh to compile sampler code.

You may refer to demo.ipynb for the usage, and demo_toy/ for a peak of data format.

##Citation

@inproceedings{chen2016entity,
  title={Entity Embedding-based Anomaly Detection for Heterogeneous Categorical Events},
  author={Chen, Ting and Tang, Lu-An and Sun, Yizhou and Chen, Zhengzhang and Zhang, Kai},
  booktitle={IJCAI},
  year={2016}
}